Technology of Network & Communication
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1838-1842

Joint power control optimization algorithm on energy efficiency in massive MIMO systems

Guo Tian
Li Guomin
College of Communication & Information Engineering, Xi'an University of Science & Technology, Xi'an 710054, China

Abstract

Energy efficiency optimization is a research hot spot in the field of 5G communications. First, this paper established an energy efficiency optimization model with regard to transmit power, pilot sequence length, and number of base station(BS) antennas under user QoS requirements and the system's tolerable channel effective noise in a single-cell multi-user uplink massive MIMO system. Then, different from the traditional iterative algorithm for solving the optimal number of BS antennas, the method used a closed-form expression to solve the optimal number of BS antennas using Lambert W function. Finally, according to the fractional programming, this paper proposed an iterative optimization algorithm to jointly optimize the system pilot sequence length, transmit power, and number of BS antennas. The simulation results show that the energy efficiency of the algorithm is 11.2% higher than that of the existing algorithm, indicating that the algorithm can effectively improve the system performance.

Foundation Support

国家自然科学青年基金项目(61801371)
陕西省教育厅专项计划项目(15JK1463)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2020.08.0245
Publish at: Application Research of Computers Printed Article, Vol. 38, 2021 No. 6
Section: Technology of Network & Communication
Pages: 1838-1842
Serial Number: 1001-3695(2021)06-045-1838-05

Publish History

[2021-06-05] Printed Article

Cite This Article

郭甜, 李国民. 基于功率控制的大规模MIMO系统能效优化算法 [J]. 计算机应用研究, 2021, 38 (6): 1838-1842. (Guo Tian, Li Guomin. Joint power control optimization algorithm on energy efficiency in massive MIMO systems [J]. Application Research of Computers, 2021, 38 (6): 1838-1842. )

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  • Application Research of Computers Monthly Journal
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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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